Electric kettle base



FIG. 1 is a perspective view of the electric kettle base;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a right side view thereof; and,

FIG. 8 is a perspective view thereof in a use environment.

The broken lines in the drawing views represent unclaimed portions of the electric kettle base, which forms no part of the claimed design. Further, the kettle shown in a use environment forms no part of the claimed design. 

CLAIM The ornamental design for an electric kettle base, as shown, and described. 